Sub-surface injection irrigator



FIG. 1 is a front elevational view of a sub-surface injection irrigator showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view; and,

FIG. 5 is a right side elevational view, the left side elevational view being a mirror image thereof. 

The ornamental design for a sub-surface injection irrigator, as shown and described. 